1997 Chevolet S-10 Blazer. I have changed water pump (leaking), changed radiator hoses, replaced Thermostat(checked temp, opens around 175 F) replaced radiator cap, flushed system, bled air from system and replaced coolant. The vehicle heats up quickly (if) running down the road.

No heat from heater during idle

hellokit December 29, 2007, 11:52pm 7

Which “fan” are you talking about? Are you talking about the engine fan, or the heater blower fan?